'use strict';
const db = uniCloud.database()
const $ = db.command.aggregate
exports.main = async (event, context) => {
	// let label = await db.collection('label').get()
	const {user_id,type} = event;
	let matchObj = {}
	if (type !== 'all') {
		matchObj = {current:true}
	}
	let userinfo = await db.collection('user').doc(user_id).get()
	userinfo = userinfo.data[0]
	
	let label  = await db.collection('label')
	.aggregate()
	.addFields({
		current:$.in(['$_id',$.ifNull([userinfo.label_ids,[]])])
	})
	.match(matchObj)
	.end()
	
	//返回数据给客户端
	return {
		code:200,
		msg:'数据请求成功',
		data:label.data
	}
};
